basics done

only supports bubble sort

main.c

@@ -0,0 +1,91 @@
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+
+#define MAX_ITERATIONS 100
+#define DESIRED_ARRAY_LENGTH 10
+#define MAX_VALUE 1000
+#define QUIT 3
+
+void print_array(int array[], size_t array_length) {
+    for(size_t index = 0; index < array_length; index++) {
+        printf("%d", array[index]);
+        if(index < array_length -1) {
+            printf(", ");
+        }
+    }
+    printf("\n");
+}
+
+// I implemented this using the pseudocode which can be found in wikipedia
+// https://en.wikipedia.org/wiki/Bubble_sort#Pseudocode_implementation
+void bubble_sort(int array[], size_t array_length) {
+    size_t n = array_length;
+
+    while(n > 1) {
+        size_t new_n = 0;
+        for(size_t i = 1; i <= n -1; i++) {
+            if(array[i-1] > array[i]) {
+                int value_to_swap = array[i];
+                array[i] = array[i-1];
+                array[i-1] = value_to_swap;
+
+                new_n = i;
+            }
+        }
+        n = new_n;
+    }
+    return;
+}
+
+void fill_array(int array[], size_t array_length) {
+    struct timespec ts;
+    timespec_get(&ts, TIME_UTC);
+    srand(ts.tv_nsec);
+
+    for(size_t i = 0; i < array_length; i++) {
+        array[i] = rand() & MAX_VALUE;    // limits the number to 100
+    }
+    return;
+}
+
+void print_menu() {
+    printf("Here are the possible options:\n");
+    printf("\t1) print array\n");
+    printf("\t2) bubble sort\n");
+    printf("\t%d) quit\n", QUIT);
+    return;
+}
+
+int main() {
+    int iterations = 0;
+    int option = EOF;
+    size_t array_length = DESIRED_ARRAY_LENGTH;
+    int array[array_length];
+    fill_array(array, array_length);
+
+    while(option != QUIT) {
+        if(iterations >= MAX_ITERATIONS) {
+            printf("loop detected. stopping...\n");
+            return 1;
+        }
+
+        print_menu();
+        int success = scanf("%d", &option); // breaks if inputing a char
+
+        if(success == 1 && option > 0 && option < QUIT) {
+            iterations = 0;
+            switch (option) {
+                case 1:
+                    print_array(array, array_length);
+                    break;
+                case 2:
+                    bubble_sort(array, array_length);
+                    break;
+            }
+        }
+        iterations++;
+    }
+    return 0;
+}